Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kc7 win in 3 half-moves
3 Ra2 win in 3 half-moves
4 Rb2 win in 3 half-moves
5 Ka5 win in 5 half-moves
6 Kb5 win in 5 half-moves
7 Kb6 win in 5 half-moves
8 Rc6 win in 5 half-moves
9 Rc7 win in 5 half-moves
10 Rc8 win in 5 half-moves
11 Ka3 draw
12 Ka6 draw
13 Ka7 draw
14 Ka8 draw
15 Kb3 draw
16 Kb8 draw
17 Kc6 draw
18 Kc8 draw
19 Rc1 draw
20 Rd2 draw
21 Re2 draw
22 Rc3 loss in 2 half-moves
23 Rc4 loss in 2 half-moves
24 Rc5 loss in 2 half-moves
25 Rf2 loss in 2 half-moves
26 Rg2 loss in 2 half-moves
27 Rh2 loss in 2 half-moves